It's happening again...

Same person is doing the same thing. I keep signing on to AIM and it connects me...then after about 30 seconds Im suddenly kicked off....I tried other names too and it does the same person...if any can help me I would appreciate it. Also, if you have AIM check if my screen name is online. It's supermacG9. Since I am trying on different names (even my girl's name) then I fear they might be getting access to my computer as a whole...